Climate systems engineering — consisting of open-systems carbon removal, sunlight reflection, and interventions to slow glacial melting — is increasingly part of the global debate about how societies could reduce the risks of climate change, alongside efforts to rapidly reduce carbon emissions. While these approaches vary in maturity, uncertainty, and policy implications, together they represent an urgent, growing frontier in climate science and policy.

This gathering will bring together leading researchers, policymakers, and other stakeholders to discuss and explore cutting-edge approaches for addressing climate change. Attendees will engage with expert perspectives on the potential benefits and risks associated with these emerging technologies.

Dates and times:

Monday, May 18, 2026 
Program: 1:00 pm – 4:30 pm CT
Networking Reception: 4:30 pm – 5:30 pm CT

Tuesday, May 19, 2026
Networking Breakfast: 8:30 am – 9:30 am CT
Program: 9:30 am – 1:00 pm CT

 

Agenda for Monday, May 18, 2026:

1:00 – 1:05 pm: Opening Remarks 

1:05 – 1:10 pm: CSEi Overview, David Keith, Founding Faculty Director, CSEi, University of Chicago

1:25 – 2:15 pm: State of the Field
Overview of the state of the science and technology in CSEi’s core research areas: open-systems carbon removal (CDR), sunlight reflection methods (SRM), and glacial interventions.

  • CDR
    • B. B. Cael, Assistant Professor, Department of the Geophysical Sciences, University of Chicago
    • Hannah Bebbington, Head of Deployment, Frontier
  • SRM
    • Mingyi Wang, Assistant Professor, Department of the Geophysical Sciences, University of Chicago
    • Ken Caldeira, Senior Scientist, Gates Ventures
  • Glacial interventions
    • Doug MacAyeal, Professor, Emeritus, Department of the Geophysical Sciences, University of Chicago
    • Marianne Hagen, Former Deputy Minister of Foreign Affairs of Norway and Co-Lead of the Seabed Curtain Project

2:20 – 3:10 pm: Policy Perspectives Panel
Discussion about the policy and politics of climate engineering. 

  • Manish Bapna, President and CEO, Natural Resources Defense Council  
  • Hina Khar, Former Foreign Minister of Pakistan 
  • Pascal Lamy, Chair of the Climate Overshoot Commission, Former WTO Director-General and Vice-President of the Paris Peace Forum
  • Justus Lehtisaari, Head of International Cooperation, Operaatio Arktis 
  • Moderator: Michael Greenstone, Faculty Director, Institute for Climate and Sustainable Growth, University of Chicago

3:30 – 4:20 pm: Viewpoints
Discussions showcasing divergent viewpoints, moderated by David Wallace-Wells, science writer and essayist for The New York Times. 

  • Session 1: Private and Nonprofit Approaches to SRM Research
    How Private companies and nonprofit organizations approach the technology and policy of sunlight reflection.

    • Dakota Gruener, CEO and Co-Founder, Reflective
    • Yanai Yedvab, CEO and Co-Founder, Stardust
  • Session 2: Political Fault Lines in Climate Systems Engineering
    How values, evidence, and shifting political alliances shape the future of sunlight reflection.

    • Sarah Hunt, CEO and President, Joseph Rainey Center for Public Policy
    • Ricken Patel, Founder and CEO, Avaaz

4:25 – 4:30 pm: Closing Remarks, David Keith

4:30 – 5:30 pm: Networking Reception

 

Agenda for Tuesday, May 19, 2026:

Day 2 features in-depth sessions led by experts on climate engineering topics, geared toward professionals and researchers working in the field.

8:30 – 9:30 am: Networking Breakfast

9:30 – 10:45 am: CSEi Research Symposium
Interactive sessions led by UChicago Climate System Engineering researchers will foster discussion on emerging findings.

11:00 – 12:00 pm: Carbon Removal Efficacy of Ocean Alkalinity Enhancement: Scientific Constraints on What Works in the Real World
This expert-led discussion will examine the factors that determine how much carbon removal can be achieved by different methods of ocean alkalinity enhancement.

  • Alicia Karspeck, Co-founder and Chief Technology Officer, [C]Worthy
  • Anna Michel, Associate Scientist, Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution
  • Noah Planavsky, Professor, Department of Earth and Planetary Sciences, Yale University

12:00 – 1:00 pm: Sunlight Reflection Deployment Technologies
This expert-led discussion will examine the aircraft platforms relevant to sunlight reflection, highlighting current capabilities and remaining technological constraints.

  • John Langford, Chairman and CEO, Electra.aero
  • Doug McMartin, Associate Professor, Sibley School of Mechanical and Aerospace Engineering, Cornell University

1:00 – 1:05 pm: Closing Remarks

 

Speakers

Manish Bapna

President and CEO, NRDC

Hannah Bebbington

Head of Deployment, Frontier
CSEI Scholar

B. B. Cael

Assistant Professor, Department of the Geophysical Sciences

Ken Caldeira

Senior Scientist, Gates Ventures
Scholar

Michael Greenstone

Founding Director, Institute for Climate and Sustainable Growth; Director, EPIC

Dakota Gruener

CEO and Co-Founder, Reflective

Marianne Hagen

Former Deputy Minister of Foreign Affairs of Norway and Co-Lead of the Seabed Curtain Project

Sarah E. Hunt

President, Joseph Rainey Center for Public Policy

Alicia Karspeck

Co-Founder and CTO, [C]Worthy
CSEI Scholar

David Keith

Founding Faculty Director, Climate Systems Engineering initiative; Professor of Geophysical Science

Hina Rabbani Khar

Distinguished Fellow; Former Foreign Minister of Pakistan

Pascal Lamy

Vice-President, Paris Peace Forum

Justus Lehtisaari

Head of International Cooperation, Operaatio Arktis
Affiliated Scholar

Douglas MacAyeal

Professor, Emeritus, Geophysical Sciences

Anna Michel

Associate Scientist, Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution

Noah Planavsky

Professor, Department of Earth and Planetary Sciences, Yale University
Affiliated Scholar

Mingyi Wang

Assistant Professor, Geophysical Sciences

Yanai Yedvab

CEO and Co-Founder, Stardust
Registration
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Add To Cal 05/18/2026 12:00 AM 05/19/2026 11:59 PM America/Chicago Frontiers in Climate Systems Engineering Join us May 18-19, 2026 for a two-day event hosted by the University of Chicago Institute for Climate and Sustainable Growth and the Climate Systems Engineering initiative (CSEi) to advance the understanding of climate engineering through rigorous analysis and open... David Rubenstein Forum 1